experiments made with an invariable pendulum. 
35 
- ^ 
Observation of Coincidences at Port Bowen ( 1st Series )— continued. 
Night, 19th June 1825, Port Bowen. „ r (Temp. 52°.5. g r J Beg®. 29.759 mer. 47°.) 29.819 mean con 
Clock gaining at a mean rate 693.88. 7S ' l Dew P ‘‘ 42 °- i End®. 29.750 — 4 6°.8. 5 to temp, of pend. 
Temp. 
Time of 
Disappear- 
auce. 
Time of 
Re-appear- 
ance. 
Mean of Dis- 
appearance 
and Re-app. 
pearance. 
Arc of 
vibra- 
tion. 
Mean 
Arc. 
Interval in se- 
Observed vibrations in 24 h. 
Correct, 
for Arc. 
Vibra, in 24 h, cor. for Arc. 
Disap. 
Disap. 
Sc Re-ap. 
Disappearance. 
Mean of Disap, 
and Re-ap, 
Disappearance. 
Mean of Disap. 
and Re-ap. 
0 
5 2 >5 
52,0 
52,0 
51,8 
h. m. s. 
9 3 2 16 
43 5 i 
55 2 5 
10 7 1 
18 38 
3 ° 15 
41 52 
53 3 ° 
11 5 9 
16 48 
m. s. 
3 2 19 
43 55 
55 3 i 
7 8 
18 45 
30 23 
42 2 
53 4 i 
5 19 
16 59 
m. s, 
3 2 U>5 
43 53 
55 28 
7 4>5 
18 41,5 
30 19 
4 i 57 
53 35>5 
5 14 
16 53>5 
0 
i.r6 
1.08 
1. 00 
0 94 
0.88 
0.82 
0 76 
0.71 
0.66 
0.62 
0 
1. 1 20 
I.040 
0.970 
0.910 
0.850 
0.790 
°-735 
0.685 
0.640 
s. 
695 
694 
696 
697 
697 
697 
698 
699 
699 
8. 
695.5 
695 
696.5 
697 
697.5 
698 
698.5 
698.5 
699.5 
86221,046 
86220,687 
86221,403 
86221,760 
86221,760 
86221,760 
86222,1 16 
86222,470 
86222,470 
86221,225 
86221,046 
86221,582 
86221,760 
86221,938 
86222,1 16 
86222,293 
86222,293 
86222,647 
vib. 
2.051 
1.768 
1-538 
1 *354 
1.178 
1.020 
0.883 
0.766 
0.670 
86223,097 
86222,455 
86222,941 
86223,1 14 
86222,938 
86222,780 
86222,999 
86223,236 
86223,140 
86223,276 
86222,814 
86223,120 
86223,1 14 
86223,1 16 
86223,136 
86223,176 
86223,059 
86223,317 
52,07 
2,07 
Mean. 
Diff. to 50 0 . Correction for Temp. 
Vibra. in 24 h. at Temp. 50°. 
86222,967 
+ 0,875 
86223,842 
86223,125 
+ 0,875 
86224,000 
Morning, 20th June 1825, Port Bowen. Hyg r 5 2 °- g ar r f Beg®. 29.749 mer. 46°. \ — 29.813 mean cor. 
Clock gaining at a mean rate 69*.88. ’ (Dew P*. 42°. ar * | Ends. 29.743 _ 46°. j to temp, of pend. 
52,5 
51,8 
5E6 
SE2 
0 55 " 4 
1 6 40 
18 16 
29 52 
41 29 
53 6 
2 4 45 
16 23 
28 00 
39 39 
55 9 
6 45 
18 22 
30 00 
4 i 37 
53 H 
4 53 
16 32 
28 16 
39 5 6 
55 6,5 
6 42,5 
18 19 
29 56 
4 i 33 
53 10 
4 49 
16 27,5 
28 8 
39 47’5 
1. 1 2 
1.04 
0.95 
0.88 
0.83 
0.78 
o -73 
0.68 
0.63 
0.59 
1.080 
0 995 
0.915 
0.855 
0.805 
0.755 
0.705 
0.655 
0.610 
696 
696 
696 
697 
697 
699 
698 
697 
699 
696 
696.5 
697 
697 
697 
699 
698.5 
700.5 
699.5 
86221,403 
86221,403 
86221,403 
86221,760 
86221,760 
86222,470 
86222,1 16 
86221,760 
86222,470 
86221,403 
8622 1,582 
86221.760 
86221.76 0 
8622 1,760 
86222,470 
86222,293 
86223,000 
86222,647 
1.907 
1. 618 
1.369 
i-i 93 
1.059 
0.932 
0.812 
0.701 
0.608 
86223,310 
86223,021 
86222,772 
86222,953 
86222,819 
86223,402 
86222,928 
86222,461 
86223,078 
86223,310 
86223,200 
86223,129 
86222,953 
86222,819 
86223,402 
86223,105 
86223,701 
86223,255 
5 1 >77 
1.77 
Mean. 
Diff. to 50°. Correction for Temp. i°.77. 
Vibra. in 24 h. at Temp. 50°. 
86222,972 
+ 0,748 
86223,720 
86223,208 
+ 0,748 
86223,956 
